crosstool-ng: patches/gcc/4.3.6/100-alpha-mieee-default.patch@c0bf2319af08

scripts: fix dumping execution backtrace

Dumping the backtrace has been broken since changeset #652e56d6d35a:
scripts: execute each steps in a subshell

We can spawn sub-sub-shells in some cases.

The way the fault handler works is to dump the backtrace, but to avoid
printing it once for every sub-shell (which could get quite confusing),
it simply exits when it detects that it is being run in a sub-shell,
leaving to the top-level shell the work to dump the backtrace.

Because each step is executed in its own sub-shell, the variable arrays
that contain the step name, the source file and line number, are lost
when exiting the per-step sub-shell.

Hence, the backtrace is currently limited to printing only the top-level
main procedure of the shell.

Fix this thus:
- when dumping the bckatraces for the steps & the functions, remember
it was dumped, and only dump it if it was not already dumped
- at the top-level shell, print the hints

Also, rename the top-level step label.

Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 4193d6e6a17430a177fa88c287879c2c35e319f3)

     1 Original patch from: ../4.3.2/100-alpha-mieee-default.patch

     3 -= BEGIN original header =-

     4 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/00_all_gcc-4.1-alpha-mieee-default.patch

     5 Set the default behavior on alpha to use -mieee since the large majority of

     6 time we want this (bad/weird things can happen with packages built without

     7 -mieee).

     9 To satisfy those people who may not want -mieee forced on them all the time,

    10 we also provide -mno-ieee.

    12 Patch by Mike Frysinger <vapier@gentoo.org>

    14 -= END original header =-

    16 diff -durN gcc-4.3.3.orig/gcc/config/alpha/alpha.h gcc-4.3.3/gcc/config/alpha/alpha.h

    17 --- gcc-4.3.3.orig/gcc/config/alpha/alpha.h	2007-12-06 14:25:37.000000000 +0100

    18 +++ gcc-4.3.3/gcc/config/alpha/alpha.h	2009-01-27 22:19:02.000000000 +0100

    19 @@ -95,6 +95,8 @@

    20    while (0)

    21  #endif

    23 +#define CPP_SPEC "%{!no-ieee:-mieee}"

    24 +

    25  #define WORD_SWITCH_TAKES_ARG(STR)		\

    26   (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))

    28 diff -durN gcc-4.3.3.orig/gcc/config/alpha/alpha.opt gcc-4.3.3/gcc/config/alpha/alpha.opt

    29 --- gcc-4.3.3.orig/gcc/config/alpha/alpha.opt	2007-08-02 12:49:31.000000000 +0200

    30 +++ gcc-4.3.3/gcc/config/alpha/alpha.opt	2009-01-27 22:19:02.000000000 +0100

    31 @@ -39,7 +39,7 @@

    32  Request IEEE-conformant math library routines (OSF/1)

    34  mieee

    35 -Target Report RejectNegative Mask(IEEE)

    36 +Target Report Mask(IEEE)

    37  Emit IEEE-conformant code, without inexact exceptions

    39  mieee-with-inexact

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch	1.13
changeset 2847	c0bf2319af08
parent 2124	5dd0b83ae528
permissions	-rw-r--r--